title: Single-photon position to time multiplexing using a fiber array.
abstract: A 1 x 8 fiber array is used as the front-end of a receiver system. Each channel has a different length of fiber, resulting in each channel signal arriving at the detector at a pre-determined interval relative to a constant repetitive frequency signal. We demonstrate that these eight channels can be efficiently coupled to an individual single-photon detector such that the arrival-time of a photon in each is distinguishable from the next. Thus, we demonstrate spatial position to time information exchange, resulting in a photon-counting array using a single detector. The receiver system could be implemented in numerous applications, including time-resolved photoluminescence, low-light level spectroscopy and quantum information processing.
authors.affiliation: SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK. r.e.warburton@hw.ac.uk
authors.forename: Ryan E
authors.initials: RE
authors.lastname: Warburton
authors.forename: Frauke
authors.initials: F
authors.lastname: Izdebski
authors.forename: Christian
authors.initials: C
authors.lastname: Reimer
authors.forename: Jonathan
authors.initials: J
authors.lastname: Leach
authors.forename: David G
authors.initials: DG
authors.lastname: Ireland
authors.forename: Miles
authors.initials: M
authors.lastname: Padgett
authors.forename: Gerald S
authors.initials: GS
authors.lastname: Buller
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation*; D017785:Photons; D013685:Telecommunications / Q000295:instrumentation*